CBSE Important Questions for Class 9 Social Science Geography Chapter 3

CBSE Important Questions for Class 9 Social Science Geography Chapter 3: Chapter 3 of Class 9 CBSE Geography, "Drainage," covers India's river systems, including the Himalayan and Peninsular rivers. Important rivers like the Ganga, Brahmaputra, and Godavari are discussed, along with concepts such as drainage basins, watersheds, and river pollution. Key topics include the differences between perennial and seasonal rivers, the role of rivers in agriculture and hydroelectric power, and major lakes in India.

 Important questions focus on river origins, tributaries, significance, and human impact. Understanding these concepts is crucial for exams, as questions often require map work, comparisons, and explanations of river system characteristics.

CBSE Important Questions for Class 9 Social Science Geography Chapter 3 Overview

Chapter 3 of Class 9 CBSE Geography, "Drainage," is essential for understanding India’s river systems and their significance. It covers the Himalayan and Peninsular rivers, major river basins, tributaries, and lakes.

 This chapter explains the role of rivers in agriculture, hydroelectricity, and water conservation, along with the impact of pollution. Important questions focus on river origins, differences between drainage patterns, the importance of lakes, and the effects of human activities on water bodies. Mastering this chapter is crucial for exams as it enhances map skills, analytical thinking, and environmental awareness, helping students understand India’s water resources better.

CBSE Important Questions for Class 9 Social Science Geography Chapter 3 PDF

Chapter 3 of Class 9 CBSE Geography, "Drainage," is crucial for understanding India's river systems, their significance, and the impact of human activities on water bodies. It covers the Himalayan and Peninsular rivers, drainage patterns, lakes, and river pollution. To help students prepare effectively, we have provided a PDF of important questions below. This resource will aid in exam preparation, enhancing conceptual clarity and map skills.

 CBSE Important Questions for Class 9 Social Science Geography Chapter 3 PDF

CBSE Important Questions for Class 9 Social Science Geography Chapter 3 Drainage

Below is the CBSE Important Questions for Class 9 Social Science Geography Chapter 3 Drainage -

 1. Which one of the following river basins covers Madhya Pradesh?

(A) Narmada basin

(B) Mahanadi basin

(C) Both (A) and (B)

(D) Krishna basin

Ans. (A) Narmada basin

2. What is the type of the Sambhar Lake?

(A) Seasonal

(B) Perennial

(C) Freshwater

(D) None of these

Ans. (A) Seasonal

3. Which is the largest freshwater lake in India ?

(A) Dal lake

(B) Wular lake

(C) Chilika lake

(D) Pulicat lake

Ans. (B) Wular lake

4. Which lake is the result of tectonic activity?

(A) Dal lake

(B) Sambhar Lake

(C) Wular lake

(D) Nainital lake

Ans. (C) Wular lake

5. Which of the following is not a natural lake?

(A) Bhimtal lake

(B) Loktak lake

(C) Barapani lake

(D) Guru Gobind Sagar

Ans. (D) Guru Gobind Sagar

6. Which of the following is not an advantage of lakes?

(A) They help to regulate the flow of a river.

(B) They help in the development of the tourism industry.

(C) They enhance natural beauty and provide recreation.

(D) None of these

Ans. (D) None of these

7. Which of the following is not a usage of rivers in the economy?

(A) They are used for irrigation.

(B) They are used for navigation.

(C) They are used in sewing and weaving.

(D) None of these

Ans. (C) They are used in sewing and weaving.

8. What affects the quality of the river water?

(A) Increasing urbanization

(B) Growing industrial and agricultural demands

(C) Dumping of untreated sewage and industrial effluents

(D) All of these

Ans. (D) All of these

9. Most of the freshwater lakes are in which region?

(A) The Himalayan region

(B) The Plain region

(C) The Central region

(D) None of these

Ans. (A) The Himalayan region

10. Name two salt water lakes on the eastern coast of India.

Sol. • The Chilika Lake,

• The Pulicat Lake.

11. Write two causes responsible for the increase in demand of water.

Sol. • Growing population,

• Urbanisation.

12. Write any two uses of the river water.

Sol. River water is used for farming, drinking, domestic and industrial uses.

13. Write any two causes of pollution of water of the Ganga River.

Sol. • Disposal of raw sewage and industrial wastes from towns and cities.

• Reduction in water flow due to abstraction of water for irrigation from the Ganga through

canals.

14. Describe any three features of Himalayan rivers.

Sol. Features of the Himalayan Rivers:

• They are perennial in nature.

• They have large basins.

• They perform intensive erosion activity in their upper course and carry huge load of silt

and sand.

15. Define a river system and describe two characteristics of river Indus.

Sol. A river along with its tributaries is called a river system.

Characteristics of River Indus:

• River Indus rises in Tibet near Mansarovar lake.

• Its total length is 2,900 km and is one of the longest rivers of the world.

• Majority flows through Pakistan and help in agricultural activities.

• The main tributaries of Indus are Nubra, Hunza, Sulley, Beas, Ravi, Chenab, Jhelum.

(any two)

16. Write a short note on the Brahmaputra River system.

 Or

 Describe the three main features of river Brahmaputra.

Sol. • The Brahmaputra originates in Tibet where it is known as Tsangpo.

• It flows eastwards parallel to the Himalayas, but it takes a U-tum around the Namcha Barwa and enters India in Arunachal Pradesh.

• It is responsible for creating a havoc of floods in Assam and Bangladesh.

• This river receives less volume of water and has less silt in Tibetan part, but it carries a large volume of water and silt in India.

• It has a braided channel in most of its length in Assam with a few large islands within the

Channel.

17. Describe any three features of Ganga-Brahmaputra delta.

 Or

 Describe the features of the Ganga plain.

Sol. • The Sundarban Delta derived its name from the Sundari tree which grows well in marshland.

• It is formed by the rivers Ganga and the Brahmaputra.

• It is the world’s largest and fastest growing delta.

• It is also the home of Royal Bengal Tiger.

 18. Why do the Himalayan rivers get flooded every year? What are its advantages?

Sol. • The Himalayan rivers receive water from the melted snow from the lofty mountains as well as from rain.

• During monsoons, due to heavy rainfall, these rivers get flooded every year.

Advantages:

• The Himalayan rivers flood parts of the northern plains enfiching the soil for the

extensive agricultural lands.

• Various food crops and cash crops are grown in these fertile lands.

19. What progress has been made in the Ganga Action Plan?

Sol. • Sixty-nine schemes have been completed with positive results.

• Trees have been planted in badly eroded portions.

Check dams have been repaired in the upper reaches of the river.

• Interception and diversion of several major drains carrying sewage and industrial wastes to the river in some cities like Varanasi,Kanpur, Patna have reduced the pollution level.

• Turtles and the Gangetic dolphins which had disappeared for several years have now reappeared in Varanasi and other places.

20. Describe the main features of Narmada Basin.

Sol. • All the tributaries of the Narmada are very short and most of these join the mainstreams

at right angle.

• The river forms an estuary before entering into the Gulf of Khambhat.

• The river Narmada rises in the Amarkantak hills and flows towards the west in a rift valley

formed due to faulting.

Benefits of Using CBSE Important Questions for Class 9 Social Science Geography Chapter 3 

Below we have provided some of the benefits of using CBSE Social Science Geography important questions - 

 Exam-Oriented Preparation – Focuses on key topics and frequently asked questions, ensuring better performance in exams.

Concept Clarity – Helps students understand drainage systems, river basins, and their importance in India’s geography.

Better Time Management – Practicing these questions improves speed and accuracy during exams.

Enhanced Map Skills – Strengthens geographical knowledge with map-based questions.

Revision Aid – A quick and structured way to revise important topics before exams.

Boosts Confidence – Familiarizes students with question patterns, reducing exam stress.